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A171524
a(n) = numbers m such that are not the product of k-th nonprime number and k for any k >= 1.
1
2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55
OFFSET
1,1
COMMENTS
Complement of set {A(nonprime(n)*n)} = {A171523(n)} = {A(A018252(n)*A000027(n))}.
CROSSREFS
Sequence in context: A187947 A242094 A349144 * A052421 A248375 A037477
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Dec 11 2009
STATUS
approved